diff options
Diffstat (limited to 'include/avb_verify.h')
-rw-r--r-- | include/avb_verify.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/include/avb_verify.h b/include/avb_verify.h new file mode 100644 index 0000000000..eaa60f5393 --- /dev/null +++ b/include/avb_verify.h @@ -0,0 +1,96 @@ + +/* + * (C) Copyright 2018, Linaro Limited + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _AVB_VERIFY_H +#define _AVB_VERIFY_H + +#include <../lib/libavb/libavb.h> +#include <mmc.h> + +#define AVB_MAX_ARGS 1024 +#define VERITY_TABLE_OPT_RESTART "restart_on_corruption" +#define VERITY_TABLE_OPT_LOGGING "ignore_corruption" +#define ALLOWED_BUF_ALIGN 8 + +enum avb_boot_state { + AVB_GREEN, + AVB_YELLOW, + AVB_ORANGE, + AVB_RED, +}; + +struct AvbOpsData { + struct AvbOps ops; + int mmc_dev; + enum avb_boot_state boot_state; +}; + +struct mmc_part { + int dev_num; + struct mmc *mmc; + struct blk_desc *mmc_blk; + disk_partition_t info; +}; + +enum mmc_io_type { + IO_READ, + IO_WRITE +}; + +AvbOps *avb_ops_alloc(int boot_device); +void avb_ops_free(AvbOps *ops); + +char *avb_set_state(AvbOps *ops, enum avb_boot_state boot_state); +char *avb_set_enforce_verity(const char *cmdline); +char *avb_set_ignore_corruption(const char *cmdline); + +char *append_cmd_line(char *cmdline_orig, char *cmdline_new); + +/** + * ============================================================================ + * I/O helper inline functions + * ============================================================================ + */ +static inline uint64_t calc_offset(struct mmc_part *part, int64_t offset) +{ + u64 part_size = part->info.size * part->info.blksz; + + if (offset < 0) + return part_size + offset; + + return offset; +} + +static inline size_t get_sector_buf_size(void) +{ + return (size_t)CONFIG_FASTBOOT_BUF_SIZE; +} + +static inline void *get_sector_buf(void) +{ + return (void *)CONFIG_FASTBOOT_BUF_ADDR; +} + +static inline bool is_buf_unaligned(void *buffer) +{ + return (bool)((uintptr_t)buffer % ALLOWED_BUF_ALIGN); +} + +static inline int get_boot_device(AvbOps *ops) +{ + struct AvbOpsData *data; + + if (ops) { + data = ops->user_data; + if (data) + return data->mmc_dev; + } + + return -1; +} + +#endif /* _AVB_VERIFY_H */ |